William coppage



(No Model.)

W. GOPPAGB. RATGHET DRILL STOCK.

No. 885,880. Patented July 8, 1888.

INirn Smarts WILLIAM COPPAGE, OF TERRE HAUTE, INDIANA, ASSIGNOR OF*ONE-HALF- einen.

TO WILLIAM H. LARIMER AND PETER CRACKENBERGER, BOTH OF SAME PLACE.

aA'i'ci-iET-naim. STOCK..

SPECIFICATION forming part of Letters Patent No. 385,660, dated July 3,1888.

Application tiled March 12, 1888. Serial No. 267,033. (No model.)

.To all whom it may concern:

Be it known that I, WILLIAM COPPAGE, a

citizen of the United States, residing at Terre Haute, in the county ofVigo and State of Indiana, have invented a new and useful Improvement inRatchet-Drill Stocks, of which the following is a specification.

My invention relates to an improvement in that vclass of ratchet-drillstocks in which the spindle in which the drill is held is rotated in onedirection by both the forward and backward movement of theoperating-lever.

The object of my improvement is to provide a tool of this class whichmay be easily and cheaply manufactured, and which shall be strong anddurable,thereby making it adapted to usein mining coal and other likerough work.

The accompanying drawings illustrate my invention.

Figure l represents a side elevation, parts of which are shown insection. Fig. 2 is a plan at a, Fig. 1.

Ais a spindle having in one end a socket, B, for holding the-drill orother like tool.

Gis a Hanged collar secured rigidly to the spindle, so as to turntherewith, and carrying pawls d d, pivoted to the flange at c, and eachhaving its pivoted end rounded and resting against an abutment, f,formed ou the collar, the purpose being to prevent undue strain on thepivot e. The free ends of pawls d are forced outward by springs h 7L.

D is a collar like C, having like pawls, i, and also secured rigidly tothe spindle, so as to turn therewith, but arranged with its working-faceopposite that of collar C.

E is a bevel gear-Wheel having on its back side a cylindrical recess, j,adapted to receive the abutment portion of collar C and the pawls d, andhaving also around its circumference a series of notches, k. adapted toengage the free end ofthe pawls. Gear-wheel E is mounted so as to turnfreely on the spindle next to collar C. Y

F is a second bevel gear-wheel, in all respects like wheel E, exceptthat it has a laterally-projecting boss, Z, in which the operatingleverH is secured. Vheel F is mounted so as to turn freely on the spindlenext to collar D.

I is a pinion-frame mounted between gearwheels E and F, and forming abearing` m, in which the spindle turns, and carrying the pinions n ando, which turn on short shaftsp and Wheels E and F.

A rod, S, secured to frame I, serves as a handle to hold and direct thetool.

In operation, a tool having been secured in socket B and placed inposition fior work, the tool is pressed against the work by means oi alever or other suitable feeding device applied to the opposite end ofthe spindle. The operator now takes rod S in one hand, thus holdingframe I stationary, and, seizing the operatinglever H in the other hand,oscillates said lever. When lever H is carried by the operator in thedirection indicated by the arrow, wheel F is turned in the samedirection and the notches j therein engage pawls t', and the spindle isturned in the same direction as wheel F. At the same time the movementof wheel F operates, through pinions a and o, to turn wheel E in theopposite direction, its notches] slipping idly over the pawls d. Whenthe operating-lever moves in the opposite direction on i', and bothintermesh with both the gear? its return movement, the notchesj in wheelF slip idly over pawls t', and the movement of wheel E being nowreversed its notches j engage pawls d and the spindle is turned in thesame direction as at first.

It will be observed that only one of the pinions a and o is absolutelyessential to the movements above described; but for the purpose ofequalizing the strain on the opposite sides of the spindle, thussecuring steadiness of motion, the use of both pinions is preferred.

I claim as my invention- Y In a ratchet-drill stock, the spindle, theflanged collars, each carrying a pawl pivoted dle, the pair of bevelgear-wheels mounted so as to turn ou the spindle against said collars,and each having a recess, j, and interior thereto, and both rigidlysecured to the spiubot-h of the bevel gear-Wheels, and bhe handlenotches, 7c, arranged to receive and engage said secured to thepinon-frame, all combined and pawls, the operating-lever secured t0 oneof arranged to (e0-operate substantially as and said bevel gear-wheels,the pnionfm1ne forrnfor the purpose specified.

ing a bearing for the spindle, arranged bevILLIAM COPP AGE. tween thebevel gear-Wheels, and carrying one 01 more bevel-pinions, whichinhermesh with Witnesses:

JOHN M. SIMS, WILL E. GARDNER.

